13th World Congress for Laser Dentistry

26-28, April 2012

Barcelona, Spain

Meeting Abstract

Sponsors: World Federation for Laser Dentistry

- Oral Presentation 41

TITLE: Bactericidal effect of CO₂ laser and Tigran brush on dental implant surfaces: a comparative in vitro study.

AUTHORS: Sadighi M, Pourabbas R, Mobaiyen H, Sadighi M, Rikhtegaran S, Fekrazad R, Parviz S.

Iran

SOURCE: Med Oral Patol Oral Cir Bucal. 2012 May 1;17(Supplement1):S41.

* doi:10.4317/medoral.17643540

http://dx.doi.org/10.4317/medoral.17643540

Abstract

Microbiologic examinations have shown that microorganisms described as periodontal pathogenes are major causes of peri-implant lesions. Beside conventional treatments, laser application could have many advantages in treatment of peri-implantitis. Comparison of bactericidal effects of CO₂ lasing and mechanical cleansing with Tigran brush on reduction of bacteria associated with peri-implantitis. 21 RBM implants were incubated in a suspension of Streptococus sanguis. The subjects were divided into three groups. In group A samples were irradiated with CO₂ laser (8 watts). Implants of group B were cleaned with Tigran brush. In Group C samples received no treatment (control group).Subjects were placed in 10 ml of PBS. 100 µl of 5 fold diluted PBS solutions was cultured for colony counting after 24 hours. Surface topography of the implants was evaluated with SEM before and after irradiation and brushing. The mean colony count was lower in groups A and B than group C significantly (P<0.05). Reduction values was not significantly different between groups A and B (P>0.05). Use of Tigran brush and CO₂ laser treatment could reduce bacterial contamination of implant surfaces.